3U anti mosquito lamp is non-harm,non-toxic,non-radiation,good efficacy,energy saving,easy to install. 3U anti mosquito lampvoltage:110v/220vwattage:20W/25W1 ... above 70% 6) good performance with above 80% efficiency. 7) the cheapest effective product for mosquito control.8)lifetime:6000h9)Applicable to ... ,corridor,balcony,bed room, factory, building, hotel and villa. 3U anti mosquito lamp